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Grimm Audio MU1 Music Server

A lovely and extremely well-built music server from Grimm Audio! Using a proprietary FPGA DAC, the MU1 pushes digital fidelity past the limits of what was previously thought possible in terms of resolution, life-like sound, and transparency!


*$10,500 without memory
*+$225 for 1TB SSD
*+$430 for 2TB SSD
*+$805 for 4TB SSD

The MU1 is the ultimate digital music source. Combined with the LS1, it forms a peerlessly elegant High-End audio system.

We wanted to develop the most accurate audio source we could imagine. In our experience, the human hearing system shows an incredible sensitivity to anomalies. Even unimaginably small aberrations appear to be audible. In principle, digital audio does offer perfect reproduction. Its sonic quality, however, is limited by the implementation accuracy of the physical and mathematical laws that affect the conversion from one format to another. Grimm Audio strives to bring you confidence that all technical details are taken care of to the greatest extent so that the reproduction system steps out of the way of the music.

“The MU1 is the ultimate digital music source: attractive, reliable and precise”

With the MU1, our goal was to set a new benchmark in music player design. The Linux-based computer system brings solid data integrity. Our in-house-designed FPGA interface board, which forms the heart of the MU1, offers breakthrough performance levels in format conversion and receives automatic updates whenever we have pushed the boundaries again. Needless to say, the MU1 features our trademark ultra-low jitter clock. This is a music player worthy of the name Grimm Audio.

Once excellent sound quality is ensured, the quality of a music player is then defined by the user experience. For this, we partnered with Roon Labs, who in our opinion are in the lead when it comes to a rich and engaging music experience that appeals to your whole family. The MU1 runs the Roon Core server, so no extra installs are necessary. Just pick up your tablet and experience the music. For customers who prefer to only run a simple playback system without Roon’s extras, we will offer a solid alternative.

The MU1 combines seamlessly with the LS1 playback system. Of course, the virtues of the MU1 can also be realized with DACs from other manufacturers. Because we love to create a stunning look for our equipment, the boundlessly versatile system is housed in a cabinet of minimalistic elegance, so the MU1 will easily become the gem of your living room.

MU1 features

Roon Core and Roon End Point integrated
ultra high up- and downsampling precision
ultra low clock jitter
seamless integration with LS1 series
excellent source for 3rd party DACs
all sample rates and formats supported
surround playback option with 6 digital output channels
AES, spdif and optical digital stereo inputs
high performance FM receiver
external USB and NAS storage, optional internal SSD
Tidal and Qobuz support
Spotify Connect support
355 x 85 x 295mm (WxHxD)
5 year limited warranty